Add a Logger

.gitignore

@@ -4,3 +4,6 @@ build/
 
 # IDE specific stuff
 .idea/
+
+# Logs
+*.log

src/main/java/de/siphalor/was/Start.java

@@ -1,6 +1,9 @@
 package de.siphalor.was;
 
 import de.siphalor.was.content.lang.I18n;
+import de.siphalor.was.util.Util;
+
+import java.util.logging.Level;
 
 public class Start {
 	public static void main(String[] args) {
@@ -9,7 +12,7 @@ public class Start {
 		was.setup();
 
 		I18n.getInstance().setLang("de_de", was.getContentManager());
-		System.out.println(I18n.getInstance().getString("test.hello-world"));
+		Util.LOGGER.log(Level.INFO, I18n.getInstance().getString("test.hello-world"));
 
 		was.run();
 	}

src/main/java/de/siphalor/was/WhatAStorage.java

@@ -12,6 +12,7 @@ import de.siphalor.was.content.quest.QuestManager;
 import de.siphalor.was.content.quest.RandomQuestGenerator;
 import de.siphalor.was.game.Balance;
 import de.siphalor.was.game.Storage;
+import de.siphalor.was.util.Util;
 import de.siphalor.was.visual.JFXVisual;
 import de.siphalor.was.visual.Visual;
 import org.jetbrains.annotations.Nullable;
@@ -20,6 +21,8 @@ import java.io.File;
 import java.nio.file.Path;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 
 public class WhatAStorage {
 	private static final int MAX_QUESTS = 3;
@@ -87,7 +90,7 @@ public class WhatAStorage {
 		productManager.reload(contentManager);
 		questManager.reload(contentManager);
 
-		System.out.println("Reloaded game content");
+		Util.LOGGER.log(Level.INFO, "Reloaded game content");
 	}
 
 	public void setup() {
@@ -141,7 +144,7 @@ public class WhatAStorage {
 
 	public void abandonQuest(int index) {
 		if (index >= quests.size()) {
-			System.out.println("INTERNAL ERROR: Attempted to abandon non-existent quest!");
+			Util.LOGGER.log(Level.SEVERE, "Attempted to abandon non-existent quest!");
 			return;
 		}
 

src/main/java/de/siphalor/was/content/lang/Lang.java

@@ -2,6 +2,7 @@ package de.siphalor.was.content.lang;
 
 import de.siphalor.was.content.ContentManager;
 import de.siphalor.was.content.resource.Resource;
+import de.siphalor.was.util.Util;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
@@ -10,6 +11,7 @@ import java.io.InputStream;
 import java.util.Enumeration;
 import java.util.Optional;
 import java.util.Properties;
+import java.util.logging.Level;
 
 public class Lang {
 	private final String code;
@@ -43,7 +45,7 @@ public class Lang {
 		});
 
 		if (properties.isEmpty()) {
-			System.out.println("Failed to load lang file for " + code);
+			Util.LOGGER.log(Level.SEVERE, "Failed to load lang file for " + code);
 		}
 	}
 

src/main/java/de/siphalor/was/content/quest/StaticQuestGenerator.java

@@ -3,6 +3,7 @@ package de.siphalor.was.content.quest;
 import de.siphalor.was.content.product.Product;
 import de.siphalor.was.content.product.ProductManager;
 import de.siphalor.was.content.product.ProductType;
+import de.siphalor.was.util.Util;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
@@ -14,6 +15,7 @@ import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 import java.util.Locale;
+import java.util.logging.Level;
 
 public class StaticQuestGenerator implements QuestGenerator {
 	@NotNull
@@ -46,22 +48,22 @@ public class StaticQuestGenerator implements QuestGenerator {
 							if (product != null) {
 								quests.add(new Quest(type, reward, product));
 							} else {
-								System.out.println("Invalid product in quest: " + line);
+								Util.LOGGER.log(Level.WARNING, "Invalid product in quest: " + line);
 							}
 						} else {
-							System.out.println("Invalid product in quest: " + parts[2]);
+							Util.LOGGER.log(Level.WARNING, "Invalid product in quest: " + parts[2]);
 						}
 					} else {
-						System.out.println("Invalid line in quests file: " + line);
+						Util.LOGGER.log(Level.WARNING, "Invalid line in quests file: " + line);
 					}
 				} catch (Exception e) {
-					System.out.println("Failed to load quest in csv file in line: " + line);
+					Util.LOGGER.log(Level.WARNING, "Failed to load quest in csv file in line: " + line);
 					e.printStackTrace();
 				}
 			}
 			return new StaticQuestGenerator(quests);
 		} catch (IOException e) {
-			System.out.println("Failed to load quest csv file:");
+			Util.LOGGER.log(Level.WARNING, "Failed to load quest csv file:");
 			e.printStackTrace();
 		}
 		return null;

src/main/java/de/siphalor/was/util/Util.java

@@ -1,10 +1,17 @@
 package de.siphalor.was.util;
 
 import java.awt.image.ImageObserver;
+import java.io.IOException;
 import java.util.function.IntPredicate;
 import java.util.function.Predicate;
+import java.util.logging.FileHandler;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import java.util.logging.SimpleFormatter;
 
 public class Util {
+	public static final Logger LOGGER;
+
 	private static final Predicate<?> DUMMY_PREDICATE = o -> true;
 	private static final IntPredicate DUMMY_INT_PREDICATE = value -> true;
 
@@ -39,4 +46,16 @@ public class Util {
 	public static ImageObserver dummyImageObserver() {
 		return (img, infoflags, x, y, width, height) -> false;
 	}
+
+	static {
+		LOGGER = Logger.getLogger("");
+		try {
+			FileHandler logFile = new FileHandler("was.log");
+			logFile.setLevel(Level.FINEST);
+			logFile.setFormatter(new SimpleFormatter());
+			LOGGER.addHandler(logFile);
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+	}
 }

src/main/java/de/siphalor/was/visual/JFXVisual.java

@@ -8,6 +8,7 @@ import de.siphalor.was.content.product.Product;
 import de.siphalor.was.content.quest.Quest;
 import de.siphalor.was.content.resource.Resource;
 import de.siphalor.was.game.Balance;
+import de.siphalor.was.util.Util;
 import de.siphalor.was.visual.jfx.controller.BalanceController;
 import de.siphalor.was.visual.jfx.controller.MainController;
 import de.siphalor.was.visual.jfx.controller.QuestController;
@@ -30,6 +31,7 @@ import org.jetbrains.annotations.NotNull;
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.*;
+import java.util.logging.Level;
 
 public class JFXVisual extends Application implements Visual {
 	private static Stage primaryStage;
@@ -209,7 +211,7 @@ public class JFXVisual extends Application implements Visual {
 				e.printStackTrace();
 			}
 		}, () -> {
-			System.out.println("INTERNAL ERROR: Failed to load quest widget");
+			Util.LOGGER.log(Level.SEVERE, "INTERNAL ERROR: Failed to load quest widget");
 		});
 	}